The act of having sexual intercourse in the butt.
The act of having anal sex.
Joe's new desktop background is a black man butt sexing a penguin.
by Bob O'connor March 12, 2006
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Sex of the anal kind
Hey girl want to go have some amazing butt sex?
by DanoD December 19, 2016
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But sex (noun) a activity mostly done by two male partners but also done by man and woman as well. Butt sex is the best way to get hiv.
John and Lee only have butt sex on saturdays.
by jkbchick May 23, 2015
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The act of auging the anal opening with your penis. Anal augging is synonymous with butt sex, otherwise known as "buttsecks"...
"Tammy has butt sex with ANYTHING..."
by TrixLondon February 25, 2016
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Something you do with the boys every saturday
Homie 1: “ayo it’s Saturday, lets have butt sex

Homie 2: “fuck daddy, ok”
by Pussyfooting2000 July 17, 2021
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A type of dinosaur from the Jurassic period that often received anal sex from every other dinosaur in the immediate vicinity.
It was often taboo back in those days as there was a disease known as DAIDS, or dino-AIDS. It is rumored to be the cause of the dinosaur extinction, even more so than an ice age.
Oh my GOD! Littlefoot! Stop receiving anal sex from that sharptooth! You don't want to be known as a Butt-Sex-A-Saurus, do you?
by InSilverFlames May 12, 2008
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